Unresolved dependencies

[gesquinca]

I can't get uport-connect to work on a Rollup.js project

Steps to reproduce:

yarn add uport-connect

yarn start

Then I get this output from the console:

yarn add v1.10.1
[1/5] 🔍  Validating package.json...
[2/5] 🔍  Resolving packages...
[3/5] 🚚  Fetching packages...
[4/5] 🔗  Linking dependencies...
warning " > [email protected]" has incorrect peer dependency "styled-components@^2.0.0 || ^3.0.2".
[5/5] 📃  Building fresh packages...
success Saved lockfile.
success Saved 75 new dependencies.
info Direct dependencies
└─ [email protected]
info All dependencies
├─ [email protected]
├─ [email protected]
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└─ [email protected]
$ yarn run build
yarn run v1.10.1
$ rollup -c

src/index.js → dist/index.js, dist/index.es.js...
preferring built-in module 'buffer' over local alternative at '/Users/gesq/_files/consensys/literate-sniffle/node_modules/buffer/index.js', pass 'preferBuiltins: false' to disable this behavior or 'preferBuiltins: true' to disable this warning
preferring built-in module 'buffer' over local alternative at '/Users/gesq/_files/consensys/literate-sniffle/node_modules/buffer/index.js', pass 'preferBuiltins: false' to disable this behavior or 'preferBuiltins: true' to disable this warning
preferring built-in module 'buffer' over local alternative at '/Users/gesq/_files/consensys/literate-sniffle/node_modules/buffer/index.js', pass 'preferBuiltins: false' to disable this behavior or 'preferBuiltins: true' to disable this warning
preferring built-in module 'buffer' over local alternative at '/Users/gesq/_files/consensys/literate-sniffle/node_modules/buffer/index.js', pass 'preferBuiltins: false' to disable this behavior or 'preferBuiltins: true' to disable this warning
preferring built-in module 'buffer' over local alternative at '/Users/gesq/_files/consensys/literate-sniffle/node_modules/buffer/index.js', pass 'preferBuiltins: false' to disable this behavior or 'preferBuiltins: true' to disable this warning
preferring built-in module 'buffer' over local alternative at '/Users/gesq/_files/consensys/literate-sniffle/node_modules/buffer/index.js', pass 'preferBuiltins: false' to disable this behavior or 'preferBuiltins: true' to disable this warning
preferring built-in module 'buffer' over local alternative at '/Users/gesq/_files/consensys/literate-sniffle/node_modules/buffer/index.js', pass 'preferBuiltins: false' to disable this behavior or 'preferBuiltins: true' to disable this warning
preferring built-in module 'buffer' over local alternative at '/Users/gesq/_files/consensys/literate-sniffle/node_modules/buffer/index.js', pass 'preferBuiltins: false' to disable this behavior or 'preferBuiltins: true' to disable this warning
preferring built-in module 'buffer' over local alternative at '/Users/gesq/_files/consensys/literate-sniffle/node_modules/buffer/index.js', pass 'preferBuiltins: false' to disable this behavior or 'preferBuiltins: true' to disable this warning
preferring built-in module 'buffer' over local alternative at '/Users/gesq/_files/consensys/literate-sniffle/node_modules/buffer/index.js', pass 'preferBuiltins: false' to disable this behavior or 'preferBuiltins: true' to disable this warning
preferring built-in module 'buffer' over local alternative at '/Users/gesq/_files/consensys/literate-sniffle/node_modules/buffer/index.js', pass 'preferBuiltins: false' to disable this behavior or 'preferBuiltins: true' to disable this warning
(!) Unresolved dependencies
https://github.com/rollup/rollup/wiki/Troubleshooting#treating-module-as-external-dependency
buffer (imported by node_modules/mnid/lib/index.js, node_modules/did-jwt/lib/Digest.js, node_modules/did-jwt/lib/SignerAlgorithm.js, commonjs-external:buffer)
[!] Error: Unexpected token
node_modules/elliptic/package.json (2:8)
1: {
2:   "name": "elliptic",
           ^
3:   "version": "6.4.1",
4:   "description": "EC cryptography",

error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.

This is the project I'm trying to integrate uport-connect into:
https://github.com/ConsenSys/rimble-ui